From 1d3fa0583d949ab0d5331b2cbbeddde50fa59146 Mon Sep 17 00:00:00 2001
From: Oliver Kowalke <oliver.kowalke@gmx.de>
Date: Fri, 7 Oct 2016 19:53:23 +0200
Subject: [PATCH] pass ecv2 as universal reference to context-fn

---
 include/boost/fiber/context.hpp     | 10 +++++-----
 include/boost/fiber/detail/wrap.hpp |  7 +++++--
 2 files changed, 10 insertions(+), 7 deletions(-)

diff --git a/include/boost/fiber/context.hpp b/include/boost/fiber/context.hpp
index 40cef59d..5bde49be 100644
--- a/include/boost/fiber/context.hpp
+++ b/include/boost/fiber/context.hpp
@@ -194,7 +194,7 @@ private:
 #else
     template< typename Fn, typename Tpl >
     boost::context::execution_context< detail::data_t * >
-    run_( boost::context::execution_context< detail::data_t * > ctx, Fn && fn_, Tpl && tpl_, detail::data_t * dp) noexcept {
+    run_( boost::context::execution_context< detail::data_t * > && ctx, Fn && fn_, Tpl && tpl_, detail::data_t * dp) noexcept {
         {
             // fn and tpl must be destroyed before calling set_terminated()
             typename std::decay< Fn >::type fn = std::forward< Fn >( fn_);
@@ -336,8 +336,8 @@ public:
         ctx_{ std::allocator_arg, palloc, salloc,
               detail::wrap(
                   [this]( typename std::decay< Fn >::type & fn, typename std::decay< Tpl >::type & tpl,
-                          boost::context::execution_context< detail::data_t * > ctx, detail::data_t * dp) mutable noexcept {
-                        return run_( std::move( ctx), std::move( fn), std::move( tpl), dp);
+                          boost::context::execution_context< detail::data_t * > && ctx, detail::data_t * dp) mutable noexcept {
+                        return run_( std::forward< boost::context::execution_context< detail::data_t * > >( ctx), std::move( fn), std::move( tpl), dp);
                   },
                   std::forward< Fn >( fn),
                   std::forward< Tpl >( tpl) )}
@@ -345,8 +345,8 @@ public:
 # else
         ctx_{ std::allocator_arg, palloc, salloc,
               [this,fn=detail::decay_copy( std::forward< Fn >( fn) ),tpl=std::forward< Tpl >( tpl)]
-               (boost::context::execution_context< detail::data_t * > ctx, detail::data_t * dp) mutable noexcept {
-                    return run_( std::move( ctx), std::move( fn), std::move( tpl), dp);
+               (boost::context::execution_context< detail::data_t * > && ctx, detail::data_t * dp) mutable noexcept {
+                    return run_( std::forward< boost::context::execution_context< detail::data_t * > >( ctx), std::move( fn), std::move( tpl), dp);
               }}
 # endif
 #endif
diff --git a/include/boost/fiber/detail/wrap.hpp b/include/boost/fiber/detail/wrap.hpp
index 850763b4..0369e61e 100644
--- a/include/boost/fiber/detail/wrap.hpp
+++ b/include/boost/fiber/detail/wrap.hpp
@@ -87,10 +87,13 @@ public:
     wrapper & operator=( wrapper && other) = default;
 
     boost::context::execution_context< data_t * >
-    operator()( boost::context::execution_context< data_t * > ctx, data_t * dp) {
+    operator()( boost::context::execution_context< data_t * > && ctx, data_t * dp) {
         return boost::context::detail::invoke(
                 std::move( fn1_),
-                fn2_, tpl_, std::move( ctx), dp);
+                fn2_,
+                tpl_,
+                std::forward< boost::context::execution_context< data_t * > >( ctx),
+                dp);
     }
 };